Explore the ways in which Shakespeare depicts familial relationships within Hamlet.

Ostensibly, it is clear that within Shakespeare's play 'Hamlet', familial relationships play a pivotal part in the enhancement of the plot. Whilst Hamlet's relationship with this deceased father is demonstrated throughout the play's incorporation of the ghost, it is interesting to explore the ways in which this familial relationship actually tests the reader's perception of Hamlet's mind - is he truly viewing the ghost of his father, or are these illustrations of otherwordly events purely figments of his imagination?